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Yamaha M-80 Amplifier Connection Options

Hello to all,

Hoping to shed light on the best speaker hook-ups for a new (to me) Yamaha M-80 amplifier. The amp will power (1) pair Boston Acoustics VR-3's. The BA's are 15-250 watts, 8 ohms and have 93db efficiency. Until now I've bi-wired the speakers c/o my Yamaha AV5990 (rated at 120 watts 20-20). Not bad, but I'm looking for much better from the new M-80 rated at 250wpc @ 8 ohms.

The M-80 gives me the option of using speaker pair A, pair B and/or pair C either separately or in a variety of combinations. However Yamaha qualifies this with the following verbiage...Scenario 1; Connect (2) pairs of speakers in parallel using A and then using either B or C --- OR --- connect (2) pairs of speakers in series using B and C.

Now Yamaha recommends that speakers run in parallel be 8 ohm minimum and then add that speakers run in series be 2 ohm minimum. I'm determined to keep bi-wiring but I'm not sure what's my best option given all the different combos???

Here is the PDF version of my owners manual... http://www.usersmanualguide.com/yamaha_audio/separate_amplifiers/m-80

I sincerely appreciate any good opinions...

Mike S.
mako20ft

Showing 2 responses by mako20ft

mako20ft's avatar
mako20ft OP
4 posts
 
Understanding bi-wiring isn't the challenge. I want to talk about using different channel outputs i.e. A OR B OR C (in what combination to be determined). The idea is to send the cleanest power to each pair of inputs on each of the speakers.

For example; my inclination is to use the (L) on Channel A with the (L) on channel B to bi-wire my left side. Then use the (R) side of channel B and C to the other. This is bordering on bi-amping but I think folks get the drift.

Do I stand to gain sonically or I am taking risks with the yamaha on in parallel vs. in series hook-ups?
mako20ft's avatar
mako20ft OP
4 posts
 
Good advice all; the specifications list 250 watts at 8 ohms but what it actually will push is anybody's guess. After reading the connections page in the manual for the 10th time I'm going to try wiring using the B & C channels. This set up will be in series and logically should give me a 16 ohm resistance???
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